Regular Expressions 101

Pro

Positive Lookbehind(?<=classes!\((?:"[^"]*",\s*)*")

classes!the literal text classes! (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Non-Capturing Group(?:"[^"]*",\s*)*

*repeats the group contents below any number of times:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

",the literal text ",

\s*any whitespace character, repeated any number of times

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Positive Lookahead(?=")

"the literal " (34₁₀ / 42₈ / 22₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

26 tokens

Regular Expression

(?<=classes!\((?:"[^"]*",\s*)*")[^"]*(?=")

New

classes!("text-xl", "text-blue-500")
String::from("test")
classes!("text-sm")

Substitution

classes!("text-xl", "text-blue-500")
String::from("test")
classes!("text-sm")